BMW DTC P0C28 – Electric/Auxiliary Transmission Fluid Pump ‘A’ Motor Current High
DTC P0C28 meaning on BMW
DTC P0C28 on a BMW indicates an issue with the Electric/Auxiliary Transmission Fluid Pump ‘A’ Motor Current being too high. This fault code is specific to the electric auxiliary transmission fluid pump motor in the vehicle.
BMW DTC P0C28 symptoms
Symptoms of BMW DTC P0C28 may include:
- Check Engine Light illuminated on the dashboard
- Transmission shifting issues
- Reduced fuel efficiency
- Vehicle may go into limp mode
BMW DTC P0C28 causes
Common causes of BMW DTC P0C28 include:
- Faulty electric auxiliary transmission fluid pump motor
- Wiring or connection issues
- Internal control module faults
BMW DTC P0C28 seriousness
The seriousness of BMW DTC P0C28 lies in the potential transmission issues it can cause. Ignoring this fault code can lead to further damage to the transmission system and may result in costly repairs if not addressed promptly.
How to diagnose DTC P0C28 on BMW
To diagnose BMW DTC P0C28, a mechanic would typically:
- Use a diagnostic scanner to retrieve the fault code
- Inspect the electric auxiliary transmission fluid pump motor and its connections
- Check for any visible signs of damage or wear
- Perform electrical tests to determine the motor’s current draw
How to fix DTC P0C28 on BMW
To fix BMW DTC P0C28, the following steps may be taken:
- Replace the faulty electric auxiliary transmission fluid pump motor
- Repair any damaged wiring or connections
- Clear the fault code and reset the system
- Perform a test drive to ensure the issue has been resolved
How to erase DTC P0C28 on BMW
To erase BMW DTC P0C28, the fault code can be cleared using a diagnostic scanner. Once the underlying issue has been addressed and fixed, the code can be reset, and the Check Engine Light should turn off. It is important to ensure that the repair has been successful before clearing the fault code.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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